davis



. H. DAVIS.

AXLE LUBRIGA'TOR.

(No Model-) Patented Sept. 12, 1882..

N. PCTERS, wholoumo n mr. Waahington. D. c.

UNITE STATES PATENT OFFICE.

NATHAN H. DAVIS, OF PHILADELPHIA, PA., ASSIGNOR OF TWO-THIRDS TO LOUIS'C. GRATZ AND A. B. DAVIS, BOTH OF SAME PLACE.

AXLE-LUBRICATO R.

SPECIFICATION forming part of Letters Patent No. 264,251, dated September 12, 1882.

Application filed June .24, 1882. (No model.)

- To all whom it may concern:

Be it known that I, NATHAN H. DAVIS, a citizen of the United States, residing in the city and county of Philadelphia, State of Penn- .sylvania, have invented a new and useful Improvement in Lubricators, which improvement is fully set forth in the following specification and accompanying drawings, in whichthe bag uniformly distended,*the bag and sack being compressed between the journal and box, and the coils of the spring are compre s ged g n tsid n thaye steam r the ee, whereby flie'bhg is firmly pressed agai'iist the journal or axle and feeds it with the lubricant, within which said bag is immersed or partly immersed, and as the bag wears .thc. ll 9f the spring are corrsponjdiingl-y relieved of compression andsofigrailu'ally rise sidewise, thus continuing to press the bag as worn against the journal or axle.

Referring to the drawings, A represents a journal or axle, and B the box thereof, both of usual construction.

0 represents a bag,which is formed of fibrous or other suitable absorbent material, closed at both ends, and containing a coiled'spring, D.-,

the coils of which are of sufficient diameter to hold the bag distended, the interior of the bag being properly packed with wool, cotton, or other material. w

The bag with its inclosuresis placed horizontally in the box 13 in the spacebetweeu the journal or axle and bottom of the box and I compressed into saidspace, the effect of which is to make the coils of the spring more acute,

shown in Fig.- 3, thus increasing their tento the journal or axle by capillary attraction in uniform and constant quantities, thus reliably lubricating the journal or axle. As the outer surface of the bag wearsthe coils of that springs are correspondingly relieved of vertical pressure, a nd thus rise sidewise in their endeavors to assumetlneir'nofifilsliap'fitnttp'osition and continue their pressure on the bug, whereby the contact of the bag and journal or axle is preserved and the lubrication effected regardless of the thickness of the material of the bag where it bears against the journal or axle.

When the bag is worn it may be turned or shifted in order to present a fresh place of contact with the journa or axle.

In lieu ofra bag, I may roll a strip oiqstrips of fabric around the spring D, and close the ends of the roll either by the fabric itself or pieces of cord, wire, &c.', the closed endsin all cases preventing displacement of the spring.

The spiral spring holds the bag always against the bottom of the box and insures a supply of lubricant, however little of the latter may re 7 main.

Having thus described my invention, what I claim as new, andilesire to secure by Letters Patent, is

A horizontal absorbent bag, 0, in cOmbina- SQ tion with a spiral spring, D, contained within said bag, and serving to hold the same against the journal which it lubricates, and against the bottom of the box, substantially as set forth.

NATHAN H. DAVIS.

Witnesses:

JOHN A. WIEDERSHEIM, W. F. Kmcnnn. 

